Home / 21,250.68-31,882.50-15,340.92

Finding the Fourth Proportional to 21,250.68, 31,882.50 and 15,340.92

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Solution

The fourth proportional to 21,250.68, 31,882.50 and 15,340.92 is: 23,016.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.68 : 31,882.50 = 15,340.92 : x
  2. Step 2: Convert to fraction form
    21,250.68/31,882.50 = 15,340.92/x
  3. Step 3: Cross multiply
    21,250.68x = 31,882.50 × 15,340.92
  4. Step 4: Simplify right side
    21,250.68x = 489,106,881.90
  5. Step 5: Solve for x
    x = 489,106,881.90/21,250.68
  6. Step 6: Final answer
    x = 23,016.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.